The Samsung 990 EVO Plus 4TB and the Western Digital WD Red Plus 4TB represent a tied comparison across the evaluated specifications. While both drives offer distinct technical strengths, the Samsung 990 EVO Plus 4TB provides the most significant performance advantage with a 3819% higher sequential read speed. Conversely, the Western Digital WD Red Plus 4TB holds a 100% advantage in DRAM cache capacity, balancing the overall comparison between these two storage solutions.

Users prioritizing rapid data access and high-speed sequential read performance should select the Samsung 990 EVO Plus 4TB for their system. Alternatively, those who require the specific benefits of a larger DRAM cache should opt for the Western Digital WD Red Plus 4TB. The choice between these components depends entirely on whether your workload demands the superior read throughput of the former or the cache-heavy architecture of the latter.